Table 3.

Prevalence, AUC, Sensitivity and Specificity for Cannabis, Cocaine, Benzodiazepines, Opioids and Amphetamines Use, n=483

Drug	AUC	Prenatal# Drug Use, n (%)	NM-ASSIST Cut-Point	Screen Positive on NM-ASSIST, n (%)	Sensitivity (95% CI)	Specificity (95% CI)	Diagnostic Odds Ratio (95% CI)
Cannabis	0.9	151 (32%)	2	189 (39.1%)	82.1 (75.1, 87.9)	85.4 (81.1, 89.1)	26.9 (16.0, 45.0)
Cocaine	0.6	47 (9.9%)	2	11 (2.3%)	17.0 (7.7, 30.8)	99.3 (98.0, 99.9)	29.0 (8.0, 105.0)
Prescription Opioids	0.6	20 (4.3%)	3	13 (2.7%)	25.0 (8.7, 49.1)	98.2 (96.5, 99.2)	18.3 (5.6, 60.4)
Street Opioids	0.6	8 (1.7%)	4	8 (1.7%)	12.5 (0.3, 52.7)	98.5 (96.9, 99.4)	9.3 (0.0, 68.1)
Benzodiazepines	0.6	5 (1.0%)	15	4 (0.8%)	20.0 (0.5, 71.6)	99.4 (98.1, 99.9)	38.8 (0.0, 357.0)

Amphetamines: 0 screen positives, but true prevalence of 1.2% (6 positive biologic drug tests)

^#Urine or hair sample tested positive for substances

Screen Positives on NM-ASSIST based on cut-point derived from ROC analysis